Difference between revisions of "Encoding Mipmaps with Wiimms Image Tool"
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==Overview== | ==Overview== | ||
| − | + | This tutorial shows how to add propper mipmaps on brres files modelled in Sketchup and created with CTools Brres Editor. | |
| − | < | + | |
| + | Mipmaps will immensely improve the visuals of your track. Your textures will look smoother and you can heavily reduce moiree patterns. | ||
| + | |||
| + | The problem with mipmaps on brres files created with CTools is that in [[TEX0]] Header offset 0x14 is always 0, so there will be no mipmaps shown in game even though CTools created them and mipmaps were enabled with BrawlBox. Even if textures are reencoded with BrawlBox the mipmaps will be of poor quality. | ||
| + | |||
| + | To create proper mipmaps for CTools tracks you have to use Wiimms Image Tool wimgt, which is part of Wiimms SZS Tools. You will also need BrawlBox to enable the use of mipmaps. | ||
| + | |||
| + | ==Step 1 - Enable Mipmaps== | ||
| + | |||
| + | Enable mipmaps with BrawlBox by setting MinFilter to Linear_Mipmap_Linear in your materials references (see [[BrawlBox Tricks]]).<BR>'''Note:''' You can do all your BrawlBox stuff like culling, animations, shaders etc. first and after that continue with step 2. | ||
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| + | ==Step 2 – Extract your brres== | ||
| + | |||
| + | Now extract your brres with wszst with the command: | ||
| + | |||
| + | wszst x course_model.brres | ||
| − | + | Open up the extracted folder and go to Textures(NW4R) and look at the name of your Textures. For Sketchup-tracks they will most likely be named something like „filename-SKP--texturename“. Copy the prefix „filename-SKP--“. | |
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| − | + | ==Step 3 – Preparing raw images== | |
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| − | + | For best quality results it is highly recommended to use your raw image files (the .PNG files of your Sketchup OBJ Model) and not the images that was encoded with CTools. If you created your OBJ with Sketchups OBJ exporter they will be stored in a folder called „trackname_Textures“. Now rename all textures you want mipmaps for with the prefix you copied from Textures(NW4R) folder of the brres, so the PNGs are named exactly like the TEX0 in your brres. <br> | |
| − | < | + | Example: Rename your texture named "texturename.PNG" to "filename-SKP--texturename.PNG". <br> |
| − | + | You can optionally sort those PNG in different folders, depending on the numer of mipmaps and the imageformat you want. For example a texture with 64x64 can have 3 mipmaps, 128x128 4 mipmaps, etc... | |
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| − | + | ==Step 4 - Encoding TEX0== | |
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| − | + | Next you will encode your PNGs to TEX0 with mipmaps using the following command:<br> wimgt encode filename.PNG --n-mm=5 <br> | |
| − | < | + | This command will create a TEX0 of the texture filename.PNG with 5 mipmaps. You can also use --n-mm=auto and wimgt will create as many mipmaps as possible. <br> If you want to encode all textures in a certain folder just use: <br>wimgt encode *.PNG --n-mm=5 |
| − | This | + | <br> |
| − | + | '''NOTE:''' CTools normally encodes your TEX0 as CMPR but wimgt will encode your TEX0 as RGB5A3 by default. The quality of your textures will be a lot higher but it will blow up the size of your brres. So it is recommended to only use RGB5A3 on textures that really need it. To force wimgt to encode as CMPR use the command:<br>wimgt encode filename.PNG --transform=CMPR --n-mm=5<br> | |
| − | + | The option --transform can encode in every known imageformat. For a list of all options for wimgt look here: [http://szs.wiimm.de/wimgt/ wimgt] | |
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| − | == | + | ==Step 5 - Replacing your TEX0== |
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| − | + | - All you need to do now is replacing your old TEX0 from your Textures(NW4R) folder with the TEX0 you just created with wimgt. | |
| − | + | - After that repack the brres using:<br>wszst create course_model.brres.d -o <br>and rename the file correctly if needed. <br> | |
| − | + | '''NOTE:''' If you want different textures appear in game depending on how far the texture is away, you can decode your new TEX0 files with: wimgt decode texturename. Now edit the PNGs of the mipmaps and reencode the TEX0. | |
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Revision as of 15:25, 3 February 2016
Overview
This tutorial shows how to add propper mipmaps on brres files modelled in Sketchup and created with CTools Brres Editor.
Mipmaps will immensely improve the visuals of your track. Your textures will look smoother and you can heavily reduce moiree patterns.
The problem with mipmaps on brres files created with CTools is that in TEX0 Header offset 0x14 is always 0, so there will be no mipmaps shown in game even though CTools created them and mipmaps were enabled with BrawlBox. Even if textures are reencoded with BrawlBox the mipmaps will be of poor quality.
To create proper mipmaps for CTools tracks you have to use Wiimms Image Tool wimgt, which is part of Wiimms SZS Tools. You will also need BrawlBox to enable the use of mipmaps.
Step 1 - Enable Mipmaps
Enable mipmaps with BrawlBox by setting MinFilter to Linear_Mipmap_Linear in your materials references (see BrawlBox Tricks).
Note: You can do all your BrawlBox stuff like culling, animations, shaders etc. first and after that continue with step 2.
Step 2 – Extract your brres
Now extract your brres with wszst with the command:
wszst x course_model.brres
Open up the extracted folder and go to Textures(NW4R) and look at the name of your Textures. For Sketchup-tracks they will most likely be named something like „filename-SKP--texturename“. Copy the prefix „filename-SKP--“.
Step 3 – Preparing raw images
For best quality results it is highly recommended to use your raw image files (the .PNG files of your Sketchup OBJ Model) and not the images that was encoded with CTools. If you created your OBJ with Sketchups OBJ exporter they will be stored in a folder called „trackname_Textures“. Now rename all textures you want mipmaps for with the prefix you copied from Textures(NW4R) folder of the brres, so the PNGs are named exactly like the TEX0 in your brres.
Example: Rename your texture named "texturename.PNG" to "filename-SKP--texturename.PNG".
You can optionally sort those PNG in different folders, depending on the numer of mipmaps and the imageformat you want. For example a texture with 64x64 can have 3 mipmaps, 128x128 4 mipmaps, etc...
Step 4 - Encoding TEX0
Next you will encode your PNGs to TEX0 with mipmaps using the following command:
wimgt encode filename.PNG --n-mm=5
This command will create a TEX0 of the texture filename.PNG with 5 mipmaps. You can also use --n-mm=auto and wimgt will create as many mipmaps as possible.
If you want to encode all textures in a certain folder just use:
wimgt encode *.PNG --n-mm=5
NOTE: CTools normally encodes your TEX0 as CMPR but wimgt will encode your TEX0 as RGB5A3 by default. The quality of your textures will be a lot higher but it will blow up the size of your brres. So it is recommended to only use RGB5A3 on textures that really need it. To force wimgt to encode as CMPR use the command:
wimgt encode filename.PNG --transform=CMPR --n-mm=5
The option --transform can encode in every known imageformat. For a list of all options for wimgt look here: wimgt
Step 5 - Replacing your TEX0
- All you need to do now is replacing your old TEX0 from your Textures(NW4R) folder with the TEX0 you just created with wimgt.
- After that repack the brres using:
wszst create course_model.brres.d -o
and rename the file correctly if needed.
NOTE: If you want different textures appear in game depending on how far the texture is away, you can decode your new TEX0 files with: wimgt decode texturename. Now edit the PNGs of the mipmaps and reencode the TEX0.